<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=478251
-->
<head>
  <title>Test for Bug 478251</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=478251">Mozilla Bug 478251</a>
<p id="display"><iframe id="t"></iframe></p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 478251 **/
var doc = $("t").contentDocument;
doc.open();
doc.write();
doc.close();
is(doc.documentElement.textContent, "", "Writing || failed");

doc.open();
doc.write(null);
doc.close();
is(doc.documentElement.textContent, "null", "Writing |null| failed");

doc.open();
doc.write(null, null);
doc.close();
is(doc.documentElement.textContent, "nullnull", "Writing |null, null| failed");

doc.open();
doc.write(undefined);
doc.close();
is(doc.documentElement.textContent, "undefined", "Writing |undefined| failed");

doc.open();
doc.write(undefined, undefined);
doc.close();
is(doc.documentElement.textContent, "undefinedundefined", "Writing |undefined, undefined| failed");

doc.open();
doc.writeln();
doc.close();
ok(doc.documentElement.textContent == "\n" || doc.documentElement.textContent == "", "Writing |\\n| failed");

doc.open();
doc.writeln(null);
doc.close();
is(doc.documentElement.textContent, "null\n", "Writing |null\\n| failed");

doc.open();
doc.writeln(null, null);
doc.close();
is(doc.documentElement.textContent, "nullnull\n", "Writing |null, null\\n| failed");

doc.open();
doc.writeln(undefined);
doc.close();
is(doc.documentElement.textContent, "undefined\n", "Writing |undefined\\n| failed");

doc.open();
doc.writeln(undefined, undefined);
doc.close();
is(doc.documentElement.textContent, "undefinedundefined\n", "Writing |undefined, undefined\\n| failed");
</script>
</pre>
</body>
</html>
